[OpenFlash]

Originally Posted by scalbert

Those throttle lift spikes are normal and nothign to worry about. Since the TMAP sensor is just before the throttle body it will see a quick spike when the throttle closes; just before the bypass valves open. This is not in the manifold so the engine is not seeing this increasewd pressure. Perefectly normal and even something you would see in a stock vehicle; albeit at a lower level.

As for the slight boost being measured in the tinake tract. Variability in the sensors and again, the TMAP being before the TB. No true vacuum is ever seen at the TMAP in the intake tract.

You have an email You too Eugen

shiv